This project is just a very small sample, started to be used as a test for modbus clients and server. It supports both Modbus TCP and Modbus RTU ( NOT YET TESTED ).
The server/slave tool, as of now, simply replies to every query. All registers and bit are init to 0. You'll always read 0 unless you explicitly send a write command.
A lot of code is commented out to both leave it there as an example and as a WIP. Take it as is.
... Coming Soon ...